Sealock Monster can't attack unless defending player controls an Island. {5}{U}{U}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.
Near Mint - $0.50
Lightly Played - $0.47
Moderately Played - $0.40
Heavily Played - $0.30
Damaged - $0.25
Near Mint Non-English - $0.50
Lightly Played Non-English - $0.47
Moderately Played Non-English - $0.40
Heavily Played Non-English - $0.30
Damaged Non-English - $0.25
Foil Prices
Near Mint Foil - $0.50
Lightly Played Foil - $0.47
Moderately Played Foil - $0.40
Heavily Played Foil - $0.30
Damaged Foil - $0.25
Near Mint Foil Non-English - $0.50
Lightly Played Foil Non-English - $0.47
Moderately Played Foil Non-English - $0.40
Heavily Played Foil Non-English - $0.30
Damaged Foil Non-English - $0.25